apriori.py 文件源码

def print_rule(self):
        """Print out rules
        """
        stdout.write('======================================================\n')
        stdout.write('Rules:\n')
        for rule in self.rule:
            head = rule[0][0]
            tail = rule[0][1]
            confidence = rule[1]
            stdout.write('(')
            stdout.write(', '.join(head))
            stdout.write(')')
            stdout.write(' ==> ')
            stdout.write('(')
            stdout.write(', '.join(tail))
            stdout.write(')')
            stdout.write('  confidence = {0}\n'.format(round(confidence, 3)))
        stdout.write('======================================================\n')